Selective weft depositors for shuttleless looms



Dec. 2, 1969 G. BONNARD 3,481,370

SELECTIVE WEFT DEPOSITORS FOR SHUTTLELESS LOOMS Filed June '7, 1967 4Sheets-Sheet 1 INVENTOR. GABRIEL BONNARD 47' TOR/VEYS Dec. 2, 1969' G.BONNARD 3,481,370

SELECTIVE WEFT DEPOSITORS FOR SHUTTLELESS LOOMS Filed June 7, 1967 4Sheets-Sheet 2 Dec. 2, 1969 G. BONNARD 3,481,370 I SELECTIVE WEFTDEFOSITORS FOR SHUTTLELESS LOOMS Filed June 7. 1967 4 Sheets-Sheet 3 O io I 47 45 52 0 l8 I9 27 43 o 0 0 46 I!" O 0 r v 26 35 INVENTOR GABRIEL.BONNARD ATTORNEY Dec. 2, 1969 e. BONNARD 3,481,370

SELECTIVE WEFT DEPOSITORS FOR SHUTTLELESS LOOMS Filed June 7, 1967 4Sheets-Sheet 4 INVENTOR GABRIE BONNA RD United States Patent 3,481,370SELECTIVE WEFT DEPOSITORS FOR SHUTTLELESS LOOMS Gabriel Bonnard, Paris,France, assignor to United Merchants and Manufacturing, Inc., New York,N.Y., a

corporation of Delaware Filed June 7, 1967, Ser. No. 644,389 Claimspriority, application France, June 8, 1966,

8 Int. Cl. D03d 47/00; D0411 15/00 US. Cl. 139-122 Claims ABSTRACT OFTHE DISCLOSURE A weft thread selecting and presenting means forsupplying weft threads of different types to the weft carrier of ashuttleless loom involving a unitary assemblage which can be moved todifferent positions on the batten of the loom so that lengths of clothof different widths can be produced with such assemblage containing anumber of weft feeder needles that are selectively movable betweeninoperative retracted positions and operative extended positions by amovable driving member mechanically connected with the batten of theloom to move to and fro in unison therewith.

The present invention is related to improvements in weft threadselectors, especially for use in weaving systems which use a grippershuttle, or shuttleless looms.

It is known that shuttleless looms use a stationary supply of weftthread, which is fed to a weft carrier for passage across the loom. Theindustry is familiar with modifications of the shuttleless loom whichpermit a variety of weft-thread types to be used. The threads may vary,according to design principles, for example, in color, texture, orcomposition.

Presently known devices for depositing Weft threads in the weft carrierselectively as to, for example, color or other yarn variation present anumber of inconveniences in practice, resulting principally from thefact that their control is independent of the oscillating batten of theloom. In the case of defective synchronization, this leads toimperfections in the results when, for example, as often happens, theweft carrier passes across the loom without having grasped the weftthread in transit. Also, known systems are relatively complicated andtheir regulation must be overly precise if one wishes to change thewidth of the cloth to be produced in the loom. The invention is designedprincipally to avoid these inconveniences while providing a selectivedepositor for weft yarn which eliminates most possibilities for mistakesand imperfections and which needs no special regulation to effect achange in the width of a length of cloth when such is desired.

A weft thread selector for false shuttle looms, according to thisinvention, is made up of a fixed assemblage the mounting position ofwhich, on each side of the loom, may be readily regulated. Eachassemblage is characterized by a plurality of movable needles, eachneedle corresponding to a thread of given color or quality. Each needledeposits weft thread in the weft carrier associated with the batten bymeans of an eyelet provided at the end of each needle proximate thebatten. The chosen needle slides from a remote position within theassemblage to an extended position toward the weft carrier and theneedles are aligned in a vertical plane parallel to the threads of thewarp. Each needle is provided with a fixed operator, for example, atransverse lug for being moved from extended to retracted position bythe force of a sliding member which oscillates in unison with thebatten. Fastening or retaining means are provided in the assemblage tomaintain non-selected needles in a retracted position, that is, theposition to which the sliding member pushes all the needles at eachstriking movement of the batten. Under these conditions it can be seenthat any possibility of incorrect movement is suppressed, since thebatten itself causes retraction of the needles of the weft threaddepositor by positive action on them.

The selected needle is advanced in the direction of the weft carrierwhen the restraining means is inoperative and this motion can be assuredeither by means of a spring or by a positive action of the slidingmember which is joined to the batten, engaging with a catch mechanismsystem on each needle. In this latter case, operation is completelyguaranteed because the movement of the thread-feeding needles ispositively controlled by the batten itself, in one direction as well asin the other. This particularly eliminates any risk of faulty operationdue to slack in a spring.

The attached drawings are given as an illustration to allow a betterunderstanding of the invention, its characteristics and the advantageswhich it can produce.

In the drawings, FIGURE 1 is a plan view showing one side of a weavingloom equipped with a selective weft depositor according to thisinvention as well as the corresponding end of the batten without thecorresponding other side which is provided for alternate operation.

FIGURE 2 is a partial cross-section elevation showing the selective weftdepositor at the moment when it supplies a thread to the weft carrier.

FIGURE 3 is an analogous view showing the batten in the position ofstriking.

FIGURE 4 shows the back end of a needle in a possible alternateembodiment, the catch mechanism of the needle equipped being in aposition corresponding to a non-selected needle. This variation isparticularly interesting in the case of weft-feeder having a singleneedle.

FIGURE 5 is an analogous view in which the needle is placed in theworking position.

FIGURE 6 shows another variation of possible operation which is thepreferred embodiment of the invention.

FIGURE 7 is an analogous view of the same variation showing theselection of another weft depositor needle.

FIGURE 8 is a schematic view in elevation, showing the arrangement ofthe thread depositor according to this invention on the side of the loomwhere it constitutes a slideable assemblage.

The selective -'weft thread selecting and presenting means according tothe invention is designed for use on a loom of the type calledshuttleless or gripper shuttle, that is to say, one which comprises aweft carrier or gripper 1 having a reciprocating motion in the directionindicated by the double arrow 2 from one side to the other side of theloom, to leave a trailing length of weft thread within the shed. Theweft carrier siezes the end of a length of weft thread at one side ofthe loom and travels on the top of a batten 3. The batten 3 oscillatesin the ordinary manner in the direction indicated in FIG- URE 2 by thearrow 4, between a position where the shed is open as in FIGURE 2 and aposition of striking where the shed is closed, as in FIGURE 3. Thebatten 3 is surmounted by a comb 5 and a pre-comb 6 of known type,joined at their top by the cross-bar 7.

The selective weft thread depositor, according to the invention, is madeup of a unitary assemblage A which is mounted at an end of thebreast-beam 8. The other end of the breast-beam 8 may be provided with asimilar assemblage A. Each assemblage A is made up of a weft controlmechanism 9 and a support frame or hous- 3 ing and is also usuallyequipped with a selvedge gripper 11 and a temple 12. The elements 9, 10,11, 12 of the assemblage A form an assembled unit, the position of whichcan be freely regulated by sliding it along the breast-beam 8 in thedirection indicated by the double arrow 13. This regulation is effectedby using a transverse screw 14 which consequently permits a quickrelease movement when it is decided to change the width of the length ofcloth 15. The support box 10 contains grooves set in fan shape which aredirected to converge at a common point 16. This point is situated in thethread receiving and-or gripping groove of the weft carrier when thelatter is in front of the thread feeder at the end of its movement. Asliding needle is set in each of the indicated grooves of support box10. In the illustration given in FIGURES 2 and 3, four needles areshown, and they have been designated respectively by the referencenumbers 17, 18, 19 and 20. Each needle is formed of a metal stem havingon its foreward end an eyelet 21. Through each eyelet 21 can pass athread coming from one of a number of stationary weft bobbins (notshown). Any selected thread can be presented to the weft carrier 1 atthe desired time.

Each needle 17, 18, 19 and has a fixed lug 22 which passes laterallythrough the stem of the needle. The back portion of each needle iencircled by a compression spring 23 held in each groove between the lug22, fastened to the needle, and a member, for example a ring 24, afiixedto the support-box 10. In FIGURE 2, only one of the springs 23 has beenindicated, but it should be understood that each needle 17, 18, 19 and20 is provided with one, preferably surrounding its rear portion.

In addition, each needle, 17, 18, 19 and 20 has, at its rear, a lockingnotch 25 in which can be caught the transverse lug 26 carried by anoscillating latch 27. Each latch 27 corresponds to one of the needles17, 18, 19, 20, and these latches are hinged on the fixed support 10.Each latch 27 can swing upward or downward as indicated in FIGURE 2 bythe double arrow 28. This motion is controlled by the weft controlmechanism 9 which may be of any type known. It may especially be of thedobby board type, a shuttle selector mechanism, or any other system,using electric, electronic, pneumatic, hydraulic etc., selection means.An illustrative mechanical operation of the control mechanism 9 isexplained in greater detail below. The connection between Weft controlmechanism 9 and latches 27 may be insured by means of connecting rods asdescribed with reference to the embodiment of FIGS. 6 and 7.

The assemblage is arranged so that when the latch 27 is at its lowermostposition, its lug 26 engages in the notch 25 of the corresponding needleand retains it against the pressure of its spring 23, in the retractedposition shown in FIGURE 2 for needles 17, 18, and 19.

According to a basic characteristic of the invention, cross-bar 7 of thebatten 3 is provided with a horizontally arranged axle 29 to which isattached a connecting rod 30 which actuates an appropriately guideddriving member 31. Member 31 may for instance be guided, as explainedbelow with reference to FIGS. 6 and 7, by being solid with a slidemovable in an appropriate slot provided in support box 10, this slideand slot being referenced 47a and 31a in FIGS. 2 and 3. The movements ofthis member are therefore controlled by movements of the batten 3 itselfand are in unison with oscillation of the batten. Member 31 movesparallel to the direction of the warp and substantially parallel to thedirection of movement of the weft depositing needles, as indicated inFIG- URE 2 by the double arrow 32. This member 31 is placed adjacent theneedles 17, 18, 19 and 20 and at the end of the striking stroke of thebatten (FIG. 3), is can bear against all the side lugs 22. Theassemblage is of such a size that when the batten 3 is at the strikingposition (FIG. 3), all lugs 22 are returned to the retracted needleposition at which the notches 25 of the various needles can receive thelugs 26 of the selector latches 27. In other words, if a latch 27 islowered at this instant, its lug 26 lodges in the notch 25 and retains.the needle in question at a withdrawn position against the pressure ofits spring 23. In contrast, if a latch 27 is at a raised position atthis instant, the needle in question is permitted to move out to itsextended position by sliding in unit 10, under the force of its spring23, when the batten returns to the open position of the shed. i.e., tothe position illustrated in FIGURE 2.

The operation is as follows:

If it is assumed, for example, that mechanism 9 keeps latch 27 raisedabove needle 20, while the other latches are lowered (FIG. 2); it can beseen that at each oscillation of the batten 3 to the left, member 31moves in the same direction and is followed by needle 20 from the threadfeeder. The eyelet 21 of this needle then presents its thread to theweft carrier 1 when the latter is about to enter the shed. Batten 3 thenoscillates to the right to execute its striking movement (FIG. 3) and itpushes member 31 in the same direction, which thrusts back lug 22 ofneedle 20. At the end of the operation, it is therefore seen that allneedles 17, 18, 19 and 20 are returned to the position shown in FIGURE3. If latch 27 of needle 20 then remains raised, said needle 20 willreturn to its extended position, under the action of its spring 23, uponthe next oscillation of the batten 3. This will be the case untilmechanism 9 lowers the latch 27 associated With needle 20. This lastthen remains locked at the retracted position as shown in FIGURE 3, anda different needle will present a different thread to weft carrier 1when mechanism 9 has ordered the raising of another latch 27, forexample the one corresponding to needle 18. In any case, the workingneedle is at its most retracted position, when the shed is closed andarrangements can be made in the control mechanism 9 for extension of theworking needle on alternate openings of the shed so that it will be inretracted position when the weft carrier is at the other side of theloom from that shown. Thus, it is clear that the needles of theselective thread depositing mechanism are retracted by positive actionof element 31 of batten 3, while in contrast they are successively setin extended operating poistion by their spring 23.

In the embodiment shown in FIGURES 4 and 5, on the contrary, it isproposed that each needle be driven positively by member 31, in onedirection as well as in the other. To do so, the rear portion of eachneedle, which is designated by reference number 33, is provided not witha spring 23, but with a horizontal transverse axle 34 disposed in anopening of the needle and on which a rocking latch 35 is pivoted. Thislatter consists of two arms, of which the one at the rear has a notch 36on its upper edge. (See FIGURE 5.) In contrast, the arm of latch 35which faces batten 3 has a catch 37 on its lower edge. This catch may beengaged by a finger 38 which is fastened to member 31 in this embodimentof the invention. In addition, a compression spring 39 is provided nearthe rear tip of the needle and under the arm of the latch 35 whichcarries the notch 36. As can be seen, this notch 36 is positioned toreceive the transverse lug 26 of a latch 27. The embodiment of FIGURES 4and 5 is especially suited for a Weft depositor having a single needle.This embodiment operates as follows:

Lug 26 can hold the rocking latch 35 in the rearwardly depressedposition of FIGURE 4, against the pressure of spring 39. Catch 37 thenremains raised above the movable finger 38, which moves with element 31,in the direction indicated by the arrow 40 or in the reverse direction.During this time, the lug 26, engaged in the notch 36 retains the needlein a Well-defined withdrawn position. As soon as mechanism 9 raises lug26, spring 39 makes latch 35 rock in the direction indicated in FIG- URE5 by the arrow 41, and as a result of the presence of an inclinedsurface 42 provided in the front of catch 37, finger 38 lodges under thenose of the catch 37 upon the next return of batten 3 and of member 31to the striking position. The needle is thus effectively fastened tomember 31 through the intermediary of its finger 38, and it accompaniesit in its movement, in one direction as well as in another, until lug 26is again lowered at a time when member 31' is returned to the strikingposition.

The invention thus makes it particularly simple to select colors orother thread variations and maintain great safety in use. There is infact no unenclosed cam or other mechanism whatsoever for operating orputting a fresh length of thread in the weft depositor, this operationbeing accomplished solely by the motion of the batten. In addition, aneedle can come in front of the weft carrier only if the batten is inthe proper position, because the two movements are joined.

FIGURES 6 to 8 present a preferred embodiment of the invention, in whichmember 31 of the batten drives each needle positively in one directionas well as in the other, according to the principles illustrated inFIGURES 4 and 5. However, this embodiment allows the fingers 38 to movethe needles along mutually parallel trajectories. This eliminates thedifficulties of practical operation which could result from the fan-likearrangement previously described for needles 17, 18, 19 and 20.

Each needle 17, 18, 19 and 20 slides in and out of retracted positionpassing through a collar 43 which is capable of pivoting freely around ahorizontal axis perpendicular to that of the needle in consideration. Inaddition, the rear end of each needle 17, 18, 19 and 20 has a horizontalaxle 34 perpendicular to the axis of the needle and on which is pivoteda latch 35.

In its front end the latter has a catch 37 which opens preferablyupward. The rear arm of each latch 35 contains a lower cam surface 44extending from the bottom to the top of the latch. A lug 26, carried bya selector latch 27, may act against this cam surface. Each of theselatches 27 is joined by an individual connecting rod to an individualoscillating lever 45 provided on the upper part of the control mechanism9. In this embodiment, once more, four needles 17, 18, 19 and 20 areshown as employed and consequently four latches 27 are provided. Thesefour latches are placed at dilferent levels and each is joined to one ofthe four levers 45 which themselves are all preferably situatedside-by-side. The connecting rods which join each lever 45 to itscorresponding latch 27 are there fore all of diiferent lengths. They aresuperposed practically in the projection of FIGURES 6 and 7 andreference number 46 has been used to designate the longest of them whichjoins one of levers 45 to a latch 27 set at the base of the mechanism,i.e., on the level of needle 20.

The support box 10, in this embodiment, has in its vertical side anumber of slots 47 which are generally horizontal and disposed aboveeach other. The transverse axle 34 of each needle 17, 18, 19 and 20 isslideably mounted within one of slots 47 by any appropriate means knownin the art, as for instance by being formed with a head slidablyreceived in the said slot which may be of T-shaped configuration. Eachlever 45 may be controlled by a frame or dobby mechanism of well-knowntype which need not be described in detail. This mechanism contains acertain number of rods 48 each of which is joined to one of the controllevers 45. To the extent that a perforated programming member 49 unwindson a drum 50, one or another of rods 48 is lowered under the action of afeeler 51 which can penetrate the perforations in the programming member49. The programming member may be one of a variety of known devices, forexample, a perforated tape, a continuous series of perforated boards,etc., or a tape or roll containing instructions in any formelectrical,magnetic, optical, etc., perceptible to the sensing element 51 employedin the control mechanism 9.

Member 31 is in one with a slide 31a which is movable in an upperadditional horizontal slot 47a of the vertical side of support box 10. Alateral flange such as 31b may stiffen the unit 31-31a thus formed.

In FIGURE 6 the dobby B has lowered the lever 45 and the latch 27 whichcorresponds to the needle 20. The cam surface 44 of the latch 35 of thisneedle is then no longer subjected to the pressure of its lug 26, withthe result that the rear arm of the latch 35 falls under the action ofits own weight (or of a spring as in the case of FIGS. 4 and 5),elevating the catch 37. Therefore, on the next strike of the batten 3,member 31 carries a finger 38 past the catch 37 and upon the nextoscillation of the batten the element 31, finger 38 and catch 37 serveto carry forward the needle 20 to its extended operative position. Theslot 47 in which needle 20 operates, as can be seen, is horizontallyaligned with corresponding collar 43 and thus the needle 20 moves insimple rectilinear displacement, indicated by the arrow 52 of FIGURE 6,to put its eyelet 21 in feeding position for the weft carrier. Whenmember 31 returns in the direction opposite from the arrow 52, it bringswith it needle 20. If, at the time of maximum retraction, the lug 26 ofthe latch 27 associated with needle 20 has returned to its upperposition, brought about by dobby B, the catch 37 will be released fromits finger 38 and needle 20 will remain at the retracted position.

At the same time that the latch 37 associated with needle 20 is raised,the latch 27 associated with needle 17 may have been lowered by thedobby B, as shown in FIGURE 7. It can thus be seen that this latterneedle 17, will be driven by member 31 in its next passage.

It will be noted that the collar 43 associated with needle 17 is not inhorizontal alignment with the slot 47 associated with this needle.Rather, the corresponding collars 43 are closer together than thecorresponding slots 47. Thus, movement of member 31 in the direction ofarrow 52 causes needle 17 to move not only in this same direction, butcauses it as well to swing to the bottom, and its thread-guide eyelet 21describes a curvilinear trajectory 53 to finally reach the focal point16 shown in FIGURE 1. Although the various grooves 47 are parallel andequidistant, it is therefore seen that the trajectories of all of theeyelets 21 converge toward the same point where the thread is given tothe weft carrier due to the positioning of the collars 43, without needof its being taken up again by any known process. Of course, each needle17, 18, 19 and 20 can be provided with a stop mechanism capable ofpositioning it exactly when it stops to give the thread to a grippershuttle or weft carrier.

FIGURE 8 presents the way in which the weft sele'ctor mechanism can bemounted on the side of the loom, in the form of a unit C capable ofbeing moved in the manner of an independent assemblage so as toaccomplish the release operations.

Batten 3, on which weft carrier 1 moves, oscillates around a shaft 54turning at half-speed, as is well known. On this shaft 54 there is fixeda cam 55 whose rotation confers a reverse motion to arm 56 of collar 57.This arm 56 is joined by an axle 58 to a rod 59 which is rigidlyconnected to a rockable shaft 60 extending across the whole width of theloom. This shaft 60 can be fluted or contain at least one longitudinalgroove 61. On shaft 60 is mounted a sleeve 62 containing internalgrooving or a spline capable of making it rotate with shaft '60, onwhich it can also slide freely. Thus rocking of shaft 60, due torotation of the cam 55, causes rocking of the sleeve 62. This sleeve 62has an arm 63 which through a connecting rod 64 converts the rocking ofsleeve 62 to oscillation of a cam 65 around an axle 66 supported by unitC. This cam is provided with a tooth 67 which drives a ratchet wheel 68for step-by-step control of the rotation of drum 50 of dobby B (seeFIGS. 6 and 7). Unit C thus is readily movable as a unit in oneoperation, permitting sleeve 62 to slide along the shaft 60. It isunderstood that two units C, one on each side of the loom, are usuallyprovided.

To summarize, therefore, in this invention the batten of the shuttlelessloom operates a slideable member which on each oscillation of the battenserves to bring all the needles of the weft depositor to the retractedposition. If the selection mechanism of a control box keeps certainlatches at the operative position, the corresponding needles areretained at the withdrawn position, against the force of a spring orother mechanism. On the other hand, a selected needle moves with theelement on the return oscillation of the batten and this needle depositsits thread in the weft carrier. The disclosure describes a movement ofthe needle positively controlled in both directions by the elementwithout the need to provide for springs.

It should be understood that the foregoing description is anillustration only of the principles of this invention and operativeembodiments may be made in which details may vary from those givenabove. In particular, any number of weft depositing needles may beemployed in the support box 10, such as one only, four, six or eight. Inthe same way, the invention could be used on a weaving loom having oneor two slice-bars.

What is claimed is:

1. A weft thread selecting and presenting means for a shuttleless loomhaving an oscillating batten, said selecting and presenting meanscomprising a support having a vertical side formed with a plurality ofparallel guiding slots; an axle slidable in each of said slots between afirst and a second position, said axle being normal to said verticalside of said support; a plurality of weft depositing needles each havinga first end and a second end with said second end pivoted on arespective one of said axles so as to be displaced by same; weft threadguiding means at the first end of each of said weft depositing needles;a number of collars each pivotally mounted to said support about ageometrical axis normal to said vertical side thereof, with each of saidweft depositing needles being freely slidable through a respective oneof said collars, said collars being so disposed with respect to saidslots that when any one of said axles is at its second position, theweft thread guiding .means of the corresponding one of said needles issituated at a single pre-determined point of presentation of weft threadon the loom batten; and actuating means to selectively move one of saidaxles from said first position to said second position and back to saidfirst position in timed relation with operation of the loom.

2. A weft thread selecting and presenting means as claimed in claim 1,wherein said actuating means comprise a driving member reciprocatablealong a path substantially parallel to said guiding slots; reciprocatingmeans to reciprocate said driving member in unison with oscillation ofthe batten of the loom; a plurality of fingers carried by said drivingmember, said fingers being substantially parallel to said axles; a catchpivoted to each of said weft depositing needles in the vicinity of thesecond end thereof, and each of said catches being movable between anoperative position at which it cooperates with one of said fingers to bereciprocated thereby and to thus reciprocate the axle of thecorresponding weft depositing needle between the first and secondposition thereof, and an inoperative position at which it clears saidone of said fingers; biasing means to urge each of said catches towardssaid inoperative position; controlling means associated to each of saidcatches and operatable to bring same to its operative position againstthe action of said biasing means; and dobby means to selectively operatethe controlling means associated to a single one of said catches at eachoscillation of the batten of the loom.

3. In a weft thread selecting and presenting means as claimed in claim2, said biasing means comprising for each of said catches an armattached thereto and acting as a counterweight.

4. In a weft thread selecting and presenting means as claimed in claim2, said reciprocating means being formed of a mechanical connectionbetween said driving member and the batten of the loom.

5. In a weft thread selecting and presenting means as claimed in claim2, said reciprocating .means comprising a connecting rod pivotallyattached to said driving memher and to the batten of the loom.

6. In a weft selecting and presenting means as claimed in claim 2, saidbiasing means comprising for each of said catches an arm attachedthereto and acting as a counterweight; and said controlling means beingformed of latches pivoted to said support, each to raise the arm of oneof said catches when the one of said axles on which the second end ofthe weft depositing needle to which said one of said catches isassociated, is pivoted, is at its first position.

7. In a weft selecting and presenting means as claimed in claim 2, eachone of said catches being pivoted on the one of said axles on which thesecond end of the weft depositing needle to which said one of saidcatches is associated, is itself pivoted.

8. A weft selecting and presenting means for a shuttleless loom havingan oscillating batten, comprising slidably supported weft depositingneedles, means supporting said needles for slidable movement between aninoperative retracted position and an operative extended position; weftthread guiding means carried by each of said weft depositing needles; amovable driving member mechanically connected with the batten of theloom for moving to and fro in unison with the batten; and means forselectively connecting one of said weft depositing needles with saiddriving member to bring said one of said needles to its operativeextended position and to thereafter return same to its inoperativeretracted position.

References Cited UNITED STATES PATENTS 3,276,482 10/1966 Liebchen.3,315,707 4/ 1967 Scheffel. 3,342,220 9/1967 Bartosek et al.

FOREIGN PATENTS 1,376,747 9/1964 France. 1,002,093 8/1965 Great Britain.

HENRY S. JAUDON, Primary Examiner

